Churn



(No Model.)

J. E. SHAW & J; T. SIMPSON.

OHURN.

NQ. 336,354. Patented Feb. 16, 1886.

ATTORNEYS. V

UNITED STATES PATENT OFFICE.

JAMES E. SHAW AND JAMES T. SIMPSON, OF HOLDEN, MISSOURI.

SEECIFICATIQN forming part of Letters Patent No. 336,354, dated February16, 1886.

Application filed June 30, IP85.

To all whom it may concern..-

Be it known that we, JAMES E. SHAW and JAMES T. Snrrson, both of Holden,in the county of Johnson and State of Missouri, have invented a new andImproved Churn, of which the following is afull, clear, and exactdescription.

Our invention relates to that class of churns wherein two concentricframes which constitute or carry the dashers are revolved in oppositedirections; and the object of our invention is to provide a churnwherein the dasherblades will alternately act to elevate and depress thecream, so that in the end the top of the cream will be on a generallevel; and a further object of our invention is to construct an innerdasher which, when revolved in one direction, will throw the cream tothe blades of the outer dasher, but which, when the direc tion ofrotation is reversed, will act to throw the cream or gather the butterin the center of the churn.

The invention consists of certain details of construction andcombinations of parts, as will be hereinafter described, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of our improved churn, a portion of thebarrel being removed to disclose the construction of the dashers. Fig. 2is a central vertical section of the churn, taken on line as a, Fig. 1;and Fig. 3 is a sectional view taken on line y y, Fig. 1.

A represents the body or barrel, and B the cover, of the churn. Thiscover 13 is made in two sections, 0 0, the section 0 being so arrangedthat it can easily be removed for the purposeofpouringinandinspectingthceream. A frame or stand, 0, arranged to support the dasher-operatingmechanism, is securely fastcned to the section 0 of the cover B. Thisoperating or driving mechanism consists of two beveled gears, E and F,that are keyed to a shaft, a, that is mounted in bearings formed in theframe 0. The gear F engages with a beveled pinion, b, that is fixed tothe shaft 0 of the inner dasher, H, the lower end of the shaft 0 beingmounted in a step, e, that is fixed to the bottom of the churn-body A,while the Serial No. 170,258. (Xo model.)

upper end passes through and is guided by the brace-rodf of the frame 0.The gear E meshes with the beveled pinion 71, that is fixed to thecylindrical shaft 9 of the outer dasher, I, said shaft 9 inclosing theshaft 0, as shown in Fig. 2. Such being the construction of the drivingmechanism, it will be clearly seen that if the gear-wheel E, which isprovided with a handle, be revolved in the direction of the arrow thedasher-shafts will be revolved in the direction of the arrows shownaround them.

W'e are aware that such a construction for operating the dashers as isabove described has heretofore been used, and we therefore do not claimthese features per se; but we are not aware that churn-dashcrs have beenheretofore constructed in the form and manner now to be specificallyexplained.

The outer dasher consists of two substantially-concentric strips, 70 andZ, which are rigidly connected to the lower end of the cylindrical shaft9, and guided below by the shaft 0, which passes through them to restwithin the step 6. Between the strips 70 and Z we secure several pairsof dasher blades or buckets, as i 73. These blades or buckets are put inpairs in about the same horizontal plane, one blade in each pair beingon either side ofthc shaft, but both blades in the same pair being inthe same diagonal plane. Every other pair of blades i z" is put in atabout the same angle, and the intervening pairs are put in at anopposite angle, so that taking the dasher circuniierentially everysecond blade will have a tendency to elevate the cream and the otherblades will have a tendency to depress it. The blades that act toelevate the cream when the dasher is revolved in the direction of thearrow are marked i, and those that tend to depress it are marked 6. Thevertical blades or buckets n n are also placed between the strips k Z,one of which, n, acts to throw the cream outward, while the other, it,acts to cause an inward current.

The inner dasher is composed of a series of flat blades, m m, of whichthere are preferably four that are rigidly secured to the innerrevolving shaft, 0. These blades are so twisted that the sides whichwould be in advance when the dasher is revolved in the direction of thearrow q are bent inward, so that instead of presenting a sharp edge thatwould simply cut through the cream the blades pre sent a tangentialsurface, which strikes the cream and creates a current toward the outerdasher.

As before stated, the dasher-bladesi z" are arranged in pairs, each pairbeing in substantially the same vertical plane, but on opposite sides ofthe dasher, so that each pair are in the same diagonal plane, and willact to alternately create an upward and a downward current.

In operation our churn is at first started in the direction of thearrows and the rotation of the dasher-frames continued until the creamhas separated, the action of the inner dasher at this time being toinduce a current toward the outer dasher-blades; but when the butter hasformed the direction ofrotation is reversed, and the inner dasher willthen act to gather the butter in the center of the churn.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. The combination, with a churn and itsoperating mechanism, ofan outer dasher-fraine carrying fixeddasher-blades arranged in pairs, one blade of each pair being mounted oneither side of the central shaft, and both blades being mounted insubstantially the same diago nal plane, substantially as set forth.

2. The combination, with a churn and its operating mechanism, of anouter dasher-frame carrying dasher-blades arranged in pairs, one bladeof each pair being mounted on either side of the central shaft, and bothblades being mounted in substantially the same diagonal plane, and aninner series of dasher-blades, the forward edges of said blades beingbent inward toward the central shaft, substantially as described.

3. The combination, with a churn and its operating mechanism, of twodasher-frames, as H and I, said frame I being provided withdiagonally-mounted dasher-blades, as it, and said frame H being composedof blades, as m m, bent so that their leading edge will approach thecentral shaft, substantially as described.

JAMES E. SHAW.

J AMES T. SIMPSON.

lVitnesses:

W. O. HARLAN, WM. W. GAUNT.

